There’s a good reason why you should use GFCI (ground-fault circuit interrupter) outlets, and if you don’t it’s probably worthwhile to switch out the outlets with some.
Usually GFCI outlets look like the ones with three holes, with the left hole a bit bigger than the right. Usually these days, they have the little test and reset buttons in the middle of the outlets. As electricity flows from the right to left (hot to neutral), this is monitored by the GFCI outlet. If there is any changes at all, then the outlet turns off the hot. The reason is that if you happen to have a bare wire and have water leaking onto it, the reaction of the GFCI is not only much quicker but it is localized. It can prevent the flow of electricity at a faster rate since it can shut off at around 1/30 of a second.
Thus, this is great for water pumps with aquariums, or why most bathrooms in houses these days are outfitted with these particular outlets. So if you don’t have in your home, it’s probably a good idea to take a look at doing some outlet replacements just to increase a bit of safety factor.
Photo Credit: (iceplee)